scripts/dtc/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 # scripts/dtc makefile
   3
   4 hostprogs-always-$(CONFIG_DTC)          += dtc
   5 hostprogs-always-$(CHECK_DT_BINDING)    += dtc
   6
   7 dtc-objs        := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
   8                    srcpos.o checks.o util.o
   9 dtc-objs        += dtc-lexer.lex.o dtc-parser.tab.o
  10
  11 # Source files need to get at the userspace version of libfdt_env.h to compile
  12 HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
  13
  14 ifeq ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),)
  15 ifneq ($(CHECK_DT_BINDING)$(CHECK_DTBS),)
  16 $(error dtc needs libyaml for DT schema validation support. \
  17         Install the necessary libyaml development package.)
  18 endif
  19 HOST_EXTRACFLAGS += -DNO_YAML
  20 else
  21 dtc-objs        += yamltree.o
  22 # To include <yaml.h> installed in a non-default path
  23 HOSTCFLAGS_yamltree.o := $(shell pkg-config --cflags yaml-0.1)
  24 # To link libyaml installed in a non-default path
  25 HOSTLDLIBS_dtc  := $(shell pkg-config yaml-0.1 --libs)
  26 endif
  27
  28 # Generated files need one more search path to include headers in source tree
  29 HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
  30 HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)
  31
  32 # dependencies on generated files need to be listed explicitly
  33 $(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h